FIGURE 102.11 Knee radiograph demonstrating increased calcium deposition at metaphysis— the so-called “lead lines.” (Reprinted from Henretig FM A toddler in status epilepticus In: Osterhoudt KC, Perrone J, DeRoos F, et al., eds Toxicology Pearls Philadelphia, PA: Hanley & Belfus; 2004:S2–S5 Copyright © 2004 Elsevier With permission.) Asymptomatic children with BLL of 45 to 69 mcg/dL should have urgent referral and treatment with oral DMSA (typically a 19-day course) or parenteral CaNa2 EDTA for days ( Table 102.15 ) If the BLL is higher than 69 mcg/dL,